Annals of Occupational and Environmental Medicine最新文献

{"title":"Relationship between organophosphate and pyrethroid pesticides and metabolic syndrome in Korean farmers.","authors":"Sungbeom Kim, Sangchul Roh, Min-Gi Kim, Jeongbae Rhie, Jisue Yoon, Sun-In Moon","doi":"10.35371/aoem.2024.36.e23","DOIUrl":"10.35371/aoem.2024.36.e23","url":null,"abstract":"<p><strong>Background: </strong>The global use of pesticides steadily increased until the early 2010s. Pesticides play a significant role in agriculture in Korea. Metabolic syndrome is more prevalent in rural areas than in urban areas. This study explored the potential association between organophosphate and pyrethroid pesticide exposure and metabolic syndrome.</p><p><strong>Methods: </strong>This study enrolled 1,317 individuals who participated in the Pesticide Exposure and Intoxication Study conducted by the Dankook University Hospital Center for Farmers' Safety and Health from 2014 to 2019. Urinary levels of dimethylphosphate, dimethylthiophosphat, diethylphosphate, and diethylthiophosphate were measured to assess organophosphate pesticide exposure and urinary levels cis-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropane carboxylic acid, trans-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropane carboxylic acid, cis-3-(2,2-dibromovinyl)-2,2-dimethylcyclopropane carboxylic acid, and 3-phenoxybenzoic acid were measured to assess pyrethroid pesticide exposure.</p><p><strong>Results: </strong>The odds ratio for the 4th quartile group of organophosphate metabolites concentration was 1.48 (95% confidence interval: 1.06-2.09) compared to the 1st quartile group after adjustment for general factors. In addition, a positive trend was observed across the quartile groups of organophosphate metabolites concentration. A positive trend was noted across the quartile groups of organophosphate metabolites in males, while no significant association was observed in females. Furthermore, no significant associations were observed between metabolic syndrome and pyrethroid metabolites concentration.</p><p><strong>Conclusions: </strong>A positive correlation was observed between the prevalence of metabolic syndrome and the concentrations of urinary organophosphate metabolites, consistent with previous research finding. This association may be attributed to the action of organophosphates as acetylcholinesterase inhibitors, stimulating beta cells in the islets of Langerhans. This can lead to alterations in lipid metabolism and insulin resistance, ultimately leading to metabolic syndrome development. Metabolic syndrome is a major contributor to cardiovascular disease; therefore, it is necessary to identify the risk factors unique to rural areas, such as pesticide exposure.</p>","PeriodicalId":46631,"journal":{"name":"Annals of Occupational and Environmental Medicine","volume":"36 0","pages":"e23"},"PeriodicalIF":1.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11444657/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142308753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The risk of insomnia by work schedule instability in Korean firefighters.","authors":"Saebomi Jeong, Jeonghun Kim, Sung-Soo Oh, Hee-Tae Kang, Yeon-Soon Ahn, Kyoung Sook Jeong","doi":"10.35371/aoem.2024.36.e24","DOIUrl":"10.35371/aoem.2024.36.e24","url":null,"abstract":"<p><strong>Background: </strong>Firefighters are exposed to shift work, as well as unpredictable emergency calls and traumatic events, which can lead to sleep problems. This study aimed to investigate the risk of insomnia by work schedule instability in Korean firefighters.</p><p><strong>Methods: </strong>This study used the Insomnia Severity Index to assess the insomnia in firefighters. The work schedule stability was classified with the frequency of the substitute work and the timing of notification for work schedule changes. Logistic regression analysis was used to assess the adjusted odds ratio of insomnia by work schedule stability with covariates including sex, age, education, smoking, alcohol, caffeine intake, shift type, job, and underlying conditions.</p><p><strong>Results: </strong>Of the 8,587 individuals, 751 (8.75%) had moderate to severe insomnia (Insomnia Severity Index ≥ 15). The prevalence of insomnia was statistically significantly higher as the frequency of substitute work increased: <1 time per month (6.8%), 1-2 times (9.5%), 3-5 times (13.4%), and more than 5 times (15.7%) (p < 0.001). Additionally, the prevalence of insomnia was statistically significantly higher when the timing of the schedule change notification was urgent or irregular: no change or several weeks before (5.4%), several days before (7.9%), one day before or on the day (11.2%), irregularly notification (11.6%) (p < 0.001). In comparison to the group with good frequency of the substitute work/good timing of schedule change notification group, the adjusted odds ratios of insomnia were 1.480 (95% confidence interval [CI]: 1.237-1.771) for Good/Bad group, 1.862 (95% CI: 1.340-2.588) for Bad/Good group, and 1.885 (95% CI: 1.366-2.602) for Bad/Bad group.</p><p><strong>Conclusions: </strong>Work schedule instability was important risk factor of insomnia in firefighters. It suggests that improving the stability of work schedules could be a key strategy for reducing sleep problems in this occupational group.</p>","PeriodicalId":46631,"journal":{"name":"Annals of Occupational and Environmental Medicine","volume":"36 0","pages":"e24"},"PeriodicalIF":1.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11407432/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142298394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Erratum: Korean translation and validation of the Workplace Positive emotion, Engagement, Relationships, Meaning, and Accomplishment (PERMA)-Profiler.","authors":"Seong Pil Choi, Chunhui Suh, Jae Won Yang, Byung Jin Ye, Chae Kwan Lee, Byung Chul Son, Maro Choi","doi":"10.35371/aoem.2024.36.e26","DOIUrl":"10.35371/aoem.2024.36.e26","url":null,"abstract":"","PeriodicalId":46631,"journal":{"name":"Annals of Occupational and Environmental Medicine","volume":"36 ","pages":"e26"},"PeriodicalIF":1.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11578631/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142668999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Relationship between the use of plastics in refrigerator food storage and urine phthalate metabolites: the Korean National Environmental Health Survey (KoNEHS) cycle 3.","authors":"Jisoo Kang, Seong-Yong Cho, Seongyong Yoon","doi":"10.35371/aoem.2023.35.e53","DOIUrl":"10.35371/aoem.2023.35.e53","url":null,"abstract":"<p><strong>Background: </strong>Plastics are high-molecular-weight materials composed of long carbon chains. They are prevalent in daily life, present in various items such as food containers and microwavable packaging. Phthalates, an additive used to enhance their flexibility, are endocrine-disrupting chemicals. We utilized the data from the Korean National Environmental Health Survey (KoNEHS) cycle 3, representing the general South Korean population, to investigate the relationship between the use of plastics in refrigerator food storage and phthalate exposure.</p><p><strong>Methods: </strong>We assessed 3,333 adult participants (aged ≥ 19 years) including 1,526 men and 1,807 women, using data from KoNEHS cycle 3. Using the 75th percentile concentration, urine phthalate metabolites were categorized into high and low-concentration groups. χ² test was conducted to analyze variations in the distribution of each variable, considering sociodemographic factors, health-related factors, food intake, the use of plastics, and the concentration of urine phthalate metabolites as the variables. To calculate odds ratios (ORs) for the high-concentration group of urine phthalate metabolites based on the use of plastics in refrigerator food storage, logistic regression analysis was conducted.</p><p><strong>Results: </strong>In men, the use of plastics in refrigerator food storage had significantly higher adjusted ORs compared to those using the others. The adjusted ORs were calculated as follows: mono-(2-ethyl-5-hydroxyhexyl) phthalate (MEHHP) had an OR of 1.35 (95% confidence interval [CI]: 1.05-1.72), mono-(2-ethyl-5-oxohexyl) phthalate (MEOHP) had an OR of 1.48 (95% CI: 1.16-1.88), mono-(2-ethyl-5-carboxypentyl) phthalate (MECPP) had an OR of 1.32 (95% CI: 1.04-1.66), ∑di(2-ethylhexyl) phthalate (∑DEHP) had an OR of 1.37 (95% CI: 1.08-1.74) and mono-n-butyl phthalate (MnBP) had an OR of 1.44 (95% CI: 1.13-1.84).</p><p><strong>Conclusion: </strong>The concentrations of urine phthalate metabolites (MEHHP, MEOHP, MECPP, ∑DEHP, and MnBP) were significantly higher in men who used plastics in refrigerator food storage compared to those using the others.</p>","PeriodicalId":46631,"journal":{"name":"Annals of Occupational and Environmental Medicine","volume":"35 ","pages":"e53"},"PeriodicalIF":1.2,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10808087/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139565142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prostate cancer in workers exposed to night-shift work: two cases recognized by the Korean Epidemiologic Investigation Evaluation Committee.","authors":"Sungkyun Park, Seongwon Ma, Hoekyeong Seo, Sang Gil Lee, Jihye Lee, Shinhee Ye","doi":"10.35371/aoem.2023.35.e52","DOIUrl":"10.35371/aoem.2023.35.e52","url":null,"abstract":"<p><strong>Background: </strong>In 2019, the International Agency for Research on Cancer re-evaluated the carcinogenicity of night-shift work and reported that there is limited evidence that night-shift work is carcinogenic for the development of prostate cancer. Therefore, in 2020 and 2021, the Korean Epidemiologic Investigation Evaluation Committee concluded that 2 cases of prostate cancer were occupational diseases related to the night-shift work. Here, we report the 2 cases of prostate cancer in night-shift workers which were first concluded as occupational diseases by the Korean Epidemiologic Investigation Evaluation Committee.</p><p><strong>Case presentation: </strong>Patient A: A 61-year-old man worked as a city bus driver for approximately 17 years, from 2002 to 2019, and was exposed to night-shift work during this period. In March 2017, the patient was diagnosed with high-grade prostate cancer through core-needle biopsy after experiencing stinging pain lasting for 2 months. Patient B: A 56-year-old man worked as an electrician and an automated equipment operator in a cement manufacturing plant for 35 years from 1976 to 2013 and was exposed to night-shift work during this period. In 2013, the patient was diagnosed with high-grade prostate cancer through core needle biopsy at a university hospital because of dysuria that lasted for 6 months.</p><p><strong>Conclusions: </strong>The 2 workers were diagnosed with high-grade prostate cancer after working night shifts for 17 and 35 years respectively. Additionally, previous studies have reported that high-grade prostate cancer has a stronger relationship with night-shift work than low or medium-grade prostate cancer. Therefore, the Korean Epidemiologic Investigation Evaluation Committee concluded that night-shift work in these 2 patients contributed to the development of their prostate cancer.</p>","PeriodicalId":46631,"journal":{"name":"Annals of Occupational and Environmental Medicine","volume":"35 ","pages":"e52"},"PeriodicalIF":1.2,"publicationDate":"2023-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10808083/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139565134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Association between ambient particulate matter levels and hypertension: results from the Korean Genome and Epidemiology Study.","authors":"Sewhan Na, Jong-Tae Park, Seungbeom Kim, Jinwoo Han, Saemi Jung, Kyeongmin Kwak","doi":"10.35371/aoem.2023.35.e51","DOIUrl":"10.35371/aoem.2023.35.e51","url":null,"abstract":"<p><strong>Background: </strong>Recently, there has been increasing worldwide concern about outdoor air pollution, especially particulate matter (PM), which has been extensively researched for its harmful effects on the respiratory system. However, sufficient research on its effects on cardiovascular diseases, such as hypertension, remains lacking. In this study, we examine the associations between PM levels and hypertension and hypothesize that higher PM concentrations are associated with elevated blood pressure.</p><p><strong>Methods: </strong>A total of 133,935 adults aged ≥ 40 years who participated in the Korean Genome and Epidemiology Study were analyzed. Multiple linear regression analyses were conducted to investigate the short- (1-14 days), medium- (1 and 3 months), and long-term (1 and 2 years) impacts of PM on blood pressure. Logistic regression analyses were conducted to evaluate the medium- and long-term effects of PM on blood pressure elevation after adjusting for sex, age, body mass index, health-related lifestyle behaviors, and geographic areas.</p><p><strong>Results: </strong>Using multiple linear regression analyses, both crude and adjusted models generated positive estimates, indicating an association with increased blood pressure, with all results being statistically significant, with the exception of PM levels over the long-term period (1 and 2 years) in non-hypertensive participants. In the logistic regression analyses on non-hypertensive participants, moderate PM₁₀ (particulate matter with diameters < 10 μm) and PM_2.5 (particulate matter with diameters < 2.5 μm) levels over the long-term period and all high PM₁₀ and PM_2.5 levels were statistically significant after adjusting for various covariates. Notably, high PM_2.5 levels of the 1 year exhibited the highest odds ratio of 1.23 (95% confidence interval: 1.19-1.28) after adjustment.</p><p><strong>Conclusions: </strong>These findings suggest that both short- and long-term exposure to PM is associated with blood pressure elevation.</p>","PeriodicalId":46631,"journal":{"name":"Annals of Occupational and Environmental Medicine","volume":"35 ","pages":"e51"},"PeriodicalIF":1.2,"publicationDate":"2023-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10808086/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139565130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Association between receiving work communications outside of work hours via telecommunication devices and work-related headaches and eyestrain: a cross-sectional analysis of the 6th Korean Working Conditions Survey.","authors":"Yoon-Soo Jang, Jae-Han Lee, Na-Rae Lee, Dong-Woo Kim, June-Hee Lee, Kyung-Jae Lee","doi":"10.35371/aoem.2023.35.e50","DOIUrl":"10.35371/aoem.2023.35.e50","url":null,"abstract":"<p><strong>Background: </strong>The rise in telecommuting or non-face-to-face work owing to the coronavirus disease 2019 pandemic has fueled conversations regarding the \"right to disconnect.\" Although evidence suggests that receiving work-related communications through telecommunication devices outside of work hours may lead to various symptoms and illnesses, limited research has been undertaken on these symptoms. This study therefore aims to investigate the correlation between receiving work communications through telecommunication devices after work hours and the occurrence of work-related headaches and eyestrain in full-time, non-shift white-collar workers.</p><p><strong>Methods: </strong>This study used data from the 6th Korean Working Conditions Survey. The frequency of using telecommunication devices for work purposes outside of working hours was divided into five categories: \"Every day,\" \"Several times a week,\" \"Several times a month,\" \"Rarely,\" and \"Never.\" Work-related headaches and eyestrain were categorized based on a \"yes\" or \"no\" response to the survey questions. Descriptive statistics, χ² tests, and multiple logistic regression analyses were performed using SPSS 27.0.</p><p><strong>Results: </strong>After adjusting for sex, age, income level, education, occupation, workplace size, work hours, and sleep disorders, the odds ratio (OR) of work-related headaches and eyestrain based on frequency of telecommunication device usage were as follows: \"rarely\" (OR: 1.292; 95% confidence interval [CI]: 1.111-1.503), \"several times a month\" (OR: 1.551; 95% CI: 1.249-1.926), \"several times a week\" (OR: 1.474; 95% CI: 1.217-1.784), and \"every day\" (OR: 1.548; 95% CI: 1.321-1.813).</p><p><strong>Conclusions: </strong>Employees who use telecommunication devices for work after regular hours are more susceptible to experiencing work-related headaches and eyestrain compared to those who do not. However, there is a dearth of research examining the physical and mental health impacts of using telecommunication devices for after-hours work. Furthermore, the existing preventative measures in Korea are insufficient. Consequently, it is imperative to develop effective measures and conduct additional research to address this issue.</p>","PeriodicalId":46631,"journal":{"name":"Annals of Occupational and Environmental Medicine","volume":"35 ","pages":"e50"},"PeriodicalIF":1.2,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10808085/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139565132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Data resource profile: the Korean Working Conditions Survey (KWCS).","authors":"Yoonho Cho","doi":"10.35371/aoem.2023.35.e49","DOIUrl":"https://doi.org/10.35371/aoem.2023.35.e49","url":null,"abstract":"<p><p>The Korean Working Conditions Survey (KWCS) is a state-approved statistical survey that has been conducted by the Occupational Safety and Health Research Institute (OSHRI) every 3 years since 2006 to monitor changes in the working conditions of Koreans. This cross-sectional national survey involves a sample of 50,000 employed people aged 15 or older. KWCS measures various working conditions through > 130 survey questions, including questions regarding working hours, labor intensity, work-life balance, degree of exposure to risk factors, and subjective health status. Professional survey interviewers visit households and conduct face to face interviews. KWCS provides data and statistics for occupational safety and health polices and research in Korea. Furthermore, OSHRI holds academic conferences every year, awards high-quality academic papers, and supports researchers using data. Microdata is publicly available through the OSHRI website (https://oshri.kosha.or.kr).</p>","PeriodicalId":46631,"journal":{"name":"Annals of Occupational and Environmental Medicine","volume":"35 ","pages":"e49"},"PeriodicalIF":1.3,"publicationDate":"2023-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10751213/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139040722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of a supportive workplace environment on the success rate for smoking cessation camp.","authors":"Woojin Kim, A Ram Kim, Minsu Ock, Young-Jee Jeon, Heun Lee, Daehwan Kim, Minjun Kim, Cheolin Yoo","doi":"10.35371/aoem.2023.35.e48","DOIUrl":"10.35371/aoem.2023.35.e48","url":null,"abstract":"<p><strong>Background: </strong>This study was conducted to identify the success rate for smoking cessation over time after participation in a therapeutic smoking cessation camp, and to identify how participant characteristics, including a supportive workplace environment for smoking cessation (SWESC), affect the success rate for smoking cessation.</p><p><strong>Methods: </strong>In all, 296 participants at smoking cessation camps in Ulsan between 2015 and 2020 were investigated. The success rates of smoking cessation after weeks 4, 6, 12, and 24 at camp were investigated. The participants were grouped as workers with an SWESC, and workers without an SWESC, and variables (age, education, household income, marital status, drinking, exercise, body mass index, morbidity, job, number of counseling sessions, cigarettes smoked per day and smoking initiation age) were investigated. Multiple logistic regression analysis was conducted at each time point. In addition, Cox regression analysis was performed to evaluate the variables affecting the success rate for smoking cessation over time.</p><p><strong>Results: </strong>The smoking cessation success rate of workers with an SWESC at week 24 (90.7%) was higher than that for workers without an SWESC (60.5%). Multiple logistic regression was performed to determine the relationship between each variable and the success rates for smoking cessation at week 6, 12, and 24. SWESC was confirmed as significant (<i>p</i> < 0.05) variables for increased success rate for smoking cessation at all 3 time points. After adjusting for all variables, the Cox proportional hazards survival analysis showed a hazard ratio of 6.17 for SWESC (<i>p</i> < 0.001,; 95% confidence interval: 3.08-12.38).</p><p><strong>Conclusions: </strong>At a professional treatment smoking cessation camp, participants with an SWESC showed a significantly higher success rate for smoking cessation. Supportive workplace environment for workers' health is expected to be an important factor for smoking cessation projects as well as other health promotion projects at workplace.</p>","PeriodicalId":46631,"journal":{"name":"Annals of Occupational and Environmental Medicine","volume":"35 ","pages":"e48"},"PeriodicalIF":1.3,"publicationDate":"2023-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10751216/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139040723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mediation analysis of chronotype, sleep-related factors, and depressive symptoms among workers: a cross-sectional study.","authors":"Seo Young Kim, Hyo Jeong Kim, Seong-Sik Cho, Min Young Park, Mo-Yeol Kang","doi":"10.35371/aoem.2023.35.e47","DOIUrl":"10.35371/aoem.2023.35.e47","url":null,"abstract":"<p><strong>Background: </strong>This study aimed to examine the impact of chronotype on depressive symptoms and explore the mediating effects of sleep quality, pre-sleep cognitive arousal, and social jetlag in a sample of wage earners.</p><p><strong>Methods: </strong>A total of 3,917 waged workers were surveyed online in July 2022. Logistic regression and mediation analysis were used to assess the relationship between chronotype (morningness, intermediate, and eveningness) and depressive symptoms (Patient Health Questionnaire ≥ 5), and the mediating effects of Insomnia Severity Index (ISI), Pittsburgh Sleep Quality Index (PSQI), and Pre-Sleep Arousal Scale (PSAS). All analyses were adjusted for age, education level, income level, marital status, coffee consumption, alcohol consumption, physical activity, occupation, employment status, and working hours to calculate odds ratios (ORs).</p><p><strong>Results: </strong>The chronotypes of all the participants were divided into morningness (4.7%), intermediate (93.5%), and eveningness (1.8%). Multiple logistic regression analysis showed an increased risk of depression in the eveningness chronotype (OR: 2.96; 95% confidence interval [CI]: 1.51, 5.86). Regarding the mediation analysis, ISI mediated 28.44% (95% CI: 16.39-40.5), PSQI for 31.25% (95% CI: 19.36, 43.15), and PSAS-Cognitive Score (PSAS-C) for 23.58% (95% CI: 10.66, 36.50) of the association between chronotype and depressive symptoms. However, social jetlag did not significantly mediate this relationship. (percentage mediated = 0.75%, 95% CI: -3.88, 5.39).</p><p><strong>Conclusions: </strong>Evening chronotypes exhibit an increased risk of depressive symptoms, which ISI, PSQI, and PSAS-C partially mediated. This suggests that interventions to improve sleep quality and maintain adequate sleep habits may effectively prevent and treat depression in employees with an eveningness chronotype.</p>","PeriodicalId":46631,"journal":{"name":"Annals of Occupational and Environmental Medicine","volume":"35 ","pages":"e47"},"PeriodicalIF":1.3,"publicationDate":"2023-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10751214/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139040724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}